Dynamic balancing-machine



B. A. L. VOLET.

DYNAMIC BALANCING MACHINE.

ggg rne Patented Dec. 27, 1921.

- I 3 SHEETS'-SHEET I jzverz ar' gr e 8 a 3 4 6 e v m a. 7m J i 1 w z R.-A. L. VOLET. I DYNAMIC BALANCING MACHINE.

APPLICATION FILED OCT-13, I919. I

Patenteam. 27, 1921.

3 SHEETS-SHEET 2- v R. A. L. VOLET.

DYNAMIC BALANCING MACHINE.

' Patented Dec. 27, 1921.

APPLICATION FILEI) OCT-13' I9I9.

of Fig. 1.

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IRENE ALFRED LAURENT VOLET, OF PARIS, FRANCE.

\ DYNAMIC BALANCING-MACHINE.

Specification of Letters rte-111;. Patg tgd D 2*? 1921.

Application filed Dctober 13, 1919. Serial No. 330,518.

To all whom it may concern:

Be it known that l, ALFRED LAU- RENT Vonnr, engineer, citizen of the French Republic, residing at Paris, France, have invented certain new and useful improve ments in Dynamic Balancing-Machines, of which the following is a specification.

This invention relates to adpis'table balancing means for machines for determining the modifications to be made in rotating elements for the purpose or balancing them,

and it relates more particularly, but not exclusively, to those machines of this general type called balancingcarriers wherein a kind of clamp suitable for being mounted on the rotating elements is utilized and a mass is so arranged on the said clamp that it can be moved radially relatively to the latter.

The invention has for its main object to make these balancing means so that the determinations to be euected can be accomplished with greater rapidity and with greater accuracy than has been possible heretofore.

Another object of the invention is to provide means whereby it becomes possible to effect the regulation or adjustment for the mechanism, not only when it is not driven,

but even during rotation thereof.

Other ob]ects of the invention will become apparent on reference to the specification which describes the invention in con nection with the accompanying drawings.

In the drawings Figure 1 shows an embodiment of the preferred form of my invention, partly in elevation and partly in longitudinal section with parts broken away.

Fig. 2 is a horizontal section on the line 22 of Fig. l.

Fig. 3 is a crossv section on the line 33 of Fig. 1, with certain parts broken away.

Fig. t is a cross section on the line lei According to the invention, as illustrated in the accompanying drawings, which latte are given by way of example, an adjustaa balancing mass of the type of the so called balancing carriers is mounted upon a shaft 0. A. body 1 is formed with an outwardly projecting web portion fron. which laterally extend on opposite sides the sleeve members 1 and 1 and the bores of these sleeves alsoertend continuously through the body 1. The diameter of said bores is sulfiupwardly from the latter.

' as brake pulleys.

cient for mounting the body on-the shaft '3 and owing to a system of splines, hereinafter more particularly described, said body is forced to rotate with the shaft.

Two pillars 2 and 2 arevsecured to or formed integral with said body and project These pillars are situated, one'at each side of the transverse a is of symmetry, at equal distances from and parallel to said axis. The upper ends of the pillars 2 are rigidly connected by a cross-bar 3. 1 I W l screw l is trunnioned at its lower end in the body 1, and at its upper end, in said cross-bar 3, and is so arranged that its vertical axis coincides with the transverse axis of symmetry of said body. A heavy plate 5 acts as a nut on said screw and is also provided with apertures which engage the pillars 2 whereby the latter act as guides for said plate.

A gear 6 is keyed on a'portion of the lower end of .the screw l. Spindles 8' and 8 are journaled in spaced bearings formed in the sleeves 1 and 1 and a laterally extending flange formed on the web portion of the body 1. Two spur pinions 6 and 6 are keyed to the spindles 8 and 8 and are adapted to mesh with the gear 6. Two beveled pinions 7 and 7 are mounted loosely on'the shaft and are located respectively adjacent the sleeves 1. and 1 These beveled pinions are provided with laterally projecting hubs 7 and 7 which are utilized the whole is mounted in a frame 9 supported on the rotating shaft 0.

Two brake blocks 10 and 10 adapted, respectively, to engage the hubs .7 and 7 are carried bylevers pivotally mounted .on the frame 9, and springs 10 normally press said leversto inoperative position (see Fig. 4;). l-lowever, by simply pressing with the finger, on either one or the other of said lovers the tension of the spring may be overcome and the corresponding brake block caused to engage the hub 7 or the hub 7 The application of one or the other of said brake blocks while the shaft is rotating causes the rotation of screw 4- in one or the other direction and therefore the heavy late 5 is moved toward or away from the b0 y 1.

On the spindles 8 and 8 are also secured beveled gears 8 and 8 The body 1 may be keyed directly on the shaft but I prefer to interpose between the body and the shaft a sleeve 11. This sleeve is journaled in spaced bearings on the 5 frame 9 and extends slightly beyond these bearings. The sleeve 11 is keyed to shaft 0 by the hey 0 is adapted to slide longi- .dinally in its hearings in the frame 9. Been the spaced bearings, the sleeve 11 is rovided with a helical groove 11. ()ne of c ling enos of the sleeve is formed with cir ular rack teeth 11 adapted to ie 1 with a pinion ld secured to a shaf nounted in 9 projecting from the frame A milled button 13 is secured to one end of this shaft for operating the same and the pinion The upper surface of the button 13 is graduated and a pointer mounted on the frame 9 cooperates with said graduations to indicate the longitudinal position of the sleeve 11. Une of the ears 9 forms a split bearing for the shaft of gear 13, and a screw 9 provided for binding the split bearing on the screw and thereby locking the gear 18 in adjusted position. A nipple 12 is screwed into the body 1, or one of its sleeves, at any suitable point so as to project radially into the helical groove 11 whereby longitudinal movement of the sleeve 11 causes a movement of rotation to be imparted into the body 1.

1 also provide means whereby the frame 9 and the assembled parts of the mechanism may be moved horizontally along the body the machine and for this purpose a bar 1% extends parallel to the shaft 0 and is in bearings (not shown) provided on the fr tie-work of the machine. A toothed raclr is cut on this bar and a pinion 15 enwith the rack issecured to one end of a shaft wnich is rotatably mounted in an extension of the frame 9, this extension having a socket portion embracing the bar 14:. illed button 15 is secured to the upper one of this shaft and can be readily manipufor operating the pinion 15 and thus ,4 V ations are provided on one of the piland on a disk 4 secured to the upper -e screw 1. The graduations on the milled head 13 i; mate the angle of keying V of the body 1 on the shaft. It will be understood that the particular construction described and shown has been chosen for illustrative purposes merely and that the invention as defined by the claims hereunto appended may be otherwise embodied and applied without departing from the spirit of the scope thereof.

What 1 claim as my invention and desire to secure by Letters patent, is

1. An adjustable balancing means comprising in combination, a frame, a shaft rotatably mounted in said frame, a body adapted to rotate with said shaft, a movable radially on said body, means for actuating said mass including gearing ro tatable' as a unit with said body, and a pair of brake elements each movable into engage ment with some of said gears whereby the actuation of one of said brake elements causes said mass to move radially in one direction'and the actuation of the other brake element causes the reverse movements thereof.

2, An adjustable balancing means comprising in combination, a frame, a sl aft rotatably mounted in the frame, a body adapted to rotate with said shaft, a mass movable radially on said body, means for actuating said mass including gearing rotatable as a unit with said body, some of said gears having extending hubs, and brakes carried by the frame and engageable with said hubs, whereby the actuation of one of said brakes causes the said mass proper to move radially in one direction and the actuation of the other brake causes the reverse movement thereof.

3. An adjustable balancing means co1nprising in combination, a frame, a shaft rotatably mounted in said frame, a body adapted to rotate with said shaft, a screw rotatably supported on said body so that its axis extends in a radial direction, a plate engaging said screw, a guide preventing said plate from participating in the rotation of the screw, a gear keyed to the screw, bevel pinions loosely mounted on the shaft having hub extensions, gearing connecting said bevel pinions and said gear, brakes carried by the frame and adapted, when actuated, to engage said hubs respectively, whereby, when one of said brakes is actuated, the movement of the corresponding hub is arrested for creating a relative movement between said bevel pinion thus braked and said gearing for actuating said screw.

4:. An adjustable balancing means comprising in combination, a frame, a shaft rotatably mounted in said frame, a body lreyed for rotation with, and angularly adjustable on said shaft, a mass movable radially on said body, means interposed between said shaft and mass whereby said mass may be moved at will in either direction, and means for changing at will the angle of adjustment of the body on the shaft.

5. An adjustable balancing means com prising in combination, a frame, a shaft rotatably mounted in the frame, a body keyed for rotation with, and angularly ad justable on said shaft, a sleeve interposed between said body and shaft having a helical groove formed therein, means for moving said sleeve longitudinally at will, means carried by said body and engaging said groove whereby the longitudinal movement of the sleeve changes the angle of adjust- .ment of said body, on said shaft and releasable means for locking the sleeve in ad usted position.

6. An ad ustable balanclng means comprising, in combination a rotatable shaft, a'

ing a helical groove formed therein, a body mounted on said sleeve having a projection adapted to engage said groove, means for moving the mass at will in either direction, means for moving the sleeve longitudinally for changing at will the angle of adjustment of the body on the shaft, and mechanism for sliding the frame longitudinally on said shaft.

7. An adjustable balancing means comprising in combination a shaft, a body adapted to rotate with the shaft, amass radially movable on the body, means for adjusting the mass radially, mechanism for adjusting the angular position of the body on the shaft, and indicating means associated with said means, said mechanism and relatively fixed portions of the apparatus whereby at the end of each determination, the exact radial position assumed by the mass and the angularity of the body on the shaft can be readily ascertained.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

. RENE ALFRED LAURENT VOLET. Witnesses:

OHAs. P. PRESSLY, PAUL BLUM. 

